Question: Who is member of Marguerite Yourcenar since 1980-3-6?
Paraphrase: Since March 6th, 1980, who is a member of Marguerite Yourcenar?
SPARQL (Wikidata): SELECT ?obj WHERE { wd:Q163118 p:P463 ?s . ?s ps:P463 ?obj . ?s pq:P580 ?x filter(contains(YEAR(?x),'1980')) }